macphail



(No Model.) a Sheets -Sheet 1. J. MAGPHAIL.

GULTIVATOR.

No. 330,794. Patented Nov. 17, 1885.

lllll I i: [m Am I I I 1 III" wfmasmas, Inflzvfi N, PETERS. Phqlolilbognphen Washington D. c.

3 Sheets-Sheet 2.

(No Model.)

J. MAGPHAIL.

OULTIVATOR.

Patented Nov. 17, 1885.

Way/5M0 N PETERS, Pnalmlilhogrnphur. \Vashinglon. D.C.

(No Model.) 3 Sheets-Sheet 3.

J. MA-GPHAIL- CULTIVATOR.

No. 330,794. Patented Nov. 1'7, 1885.

fnwanfir Pholo-Lilhognpher. Washingtnn. o. c.

Unrrnn raras JAMES rmornarn, or nooxronn,

* ATFNT rrrcn.

ILLINOIS, ASSIGNOR TO THE N. O.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 880,794, dated November 17, 1885. Application filed January 26, 1885. Serial No. 154,022. (No model.)

To aZZ whom it may concern:

Be it known that I, JAMES MAoPHAIL, a citizen of the United States, residing in the city of Rockford, in the countyof lVinnebago and State of Illinois, have invented a new and useful Cultivator, of which the following is a specification.

This invention relates to a class of cultivators known as the straddle-row walkingcultivator. Its object is to simplify the construction of this class of implements and produce a superior and more eificient machine at a reduced cost. To this end I have designed and constructed the machine represented in the accompanying drawings, in which Figure 1 is a plan view of a cultivator embodying my invention. Fig. 2 is a side elevation in which one of the carryingwheels is omitted. Fig. 3 is a transverse vertical sec tion on dotted line 1, Fig. 1. Fig. 4 is a vertical central section of the axle on dotted line 2, Fig. 1. Fig. 5 is a transverse vertical section on dotted line 3, Fig. 1. Fig. 6 is a vertical section on dotted line 4, Fig. l; and Fig. 7 is a vertical section on dotted line 5, Fig. 2.

In the figures, A represents tongue-beams, of the usual form, having their forward ends joined to each other and fitted to receive a neck-yoke in the usual manner. From their forward connection these tongue-beams diverge, extending rearward, and are supported in their separated position at their rear ends by a metallic cross-head consisting of parallel bars a, connected at proper intervals by transverse bars, 5, and at their ends are pro vided with ears 0, projecting from their forward and rear sides in the line of the tonguebeams, to which they are securely fixed by suitable screw-bolts passed through the tongue beams and through the ears 0 of the metallic cross-head, and produce a tongue-frame of the usual V form. The transverse connecting-bars b of the cross-head are centrally bored in the lengthwise axis of the cross-head, for a purpose to hereinafter appear. The crankformed arched supportingbar of my improved cultivator is produced in like halves from bar material cylindrical in section, and consists of three sectionsa vertical section, B, crowning horizontal section 0, and a lateral outward section, D. The crowning horizontal sections of the two-part arching bar are grooved at d on their under faces, and are placed from opposite ends in the axial base in the cross-head, and are capable of an oscillatory movement therein. These crowning-arms C are provided with a collar, E, fitted to enter the end spaces between the transverse bars of the cross-head and receive the crown-arms O of the arched bar, and these collars are provided with an inward projection, d, to enter the groove (1 in the arched bar. These collars are made adj ustable on the arched bars to permit the like halves thereof to be placed toward or from each other to increase or lessen the space between their vertical arms, and when adjusted the collars are fixed in their adjusted position on the bars by means of set-screws having a screw-thread connection with a screw-nut, d, placed in a recess formed within the collar, as clearly shown in Fig. 5. The construction of these collars is such as to engage the parallel bars a of the cross-head in a manner to limit the oscillatory movements of the like halves of the arched bar.

At F are represented sleeves placed upon the lateral projecting arms D of the arched bar in a manner to permit an oscillatory move ment. From the sleeve Farms 6 project rearward, and connect at their rear ends with a tubular draft-bar, G, having its rear face flattened, as shown at e. The several parts,consisting of the sleeve F, the rearward-projecting arms 6, and the tubular draft-bar G, constitute the bracket-support of the axle-arm. The tubular draft-bar is provided with a cylindrical axle-arm, H, fixed in place therein by means of transverse pins passed through the parts, and its projecting end receives the carrying wheels I in a manner to revolve thereon. The length of the bars H forming the axle arms and their transverse borings is such as to permit either end of the bar to be placed in the tubular draft-bar in such a manner that when one end thereof becomes worn, to render it unfit for use as an axle-arm, the bar may be withdrawn from the draft-bar and the worn end inserted, presenting the unworn end as a new axle.

At K is represented a tubular coupling-bar having one of its sides at h flattened to engage the flattened face of the draft-bar, and its opposite or near side is fitted with projections h, extending rearward.

At L are represented clasp -plates fitted with eyes to receive the tubular bar K and enter between the projections h on its rear side, and are made adjustable to engage the tube between any of the projections h. These clasp-bars, from their connection with the tubular bar, are made to embrace the draft-bar, and are fitted to receive a clamping-bolt, h, immediately in front of the draft bar, by means of which the tubular bar is firmly clamped to the draft-bar,and is made adjustable lengthwise thereon, and by means of its rear projections is capable of a vertical adjustment.

At M are represented shovel-beams produced from channetbars, preferably of steel, and are curved downward at their rear ends in the usual manner. These shovel-beams are joined at their forward ends by a screw-bolt passed transversely through the bars, and are held in their separated position at their rear ends by means of a brace, z, securely fixed to the beams by sufficient screw-bolts. The foot ends of these shovel-beams are provided with a frictional safety attachment, in which is rep resents the shovel-supporting sleeve produced from bar material in loop form, having its open ends embrace the sides of the beam and are connected therewith by means of a pivotbolt passed through the parts near the lower end of the beam.

At k are represented frictional clampingjaws, curved at one end to embrace the beam between its edge flanges, and their other ends to overlap the upper ends of the shovel-supporting sleeve. These frictional clampingjaws are fixed in place on the shovel-beams, and are made adjustable in their holding force by means of a clamping screw bolt passed through the parts above the upper ends of the shovel-supporting sleeve.

At It are represented shovels of the usual construction, fitted with a back to engage the supporting-sleeve, which backs are provided with a transverse slot to receive the head of a bolt, which extends through the supporting-sleeve and serves to fix the shovel in place in a manner capable of adjustment to vary the angle of its face relatively with the draft-line to throw the earth to or from the plants, and of a vertical adjustment on the sleeve to regulate their running-depths relatively with each other, and by means of their safety connections are made adjustable to vary their angle relatively with the surface of the ground in the direction of the draftline, and hold them in their adjusted position with a force sufficient for the purposes of cultivation, but in a manner to permit them to turn back on their pivotal connection with the shovel beam to override obstructions. The shovel-beams are also provided with handles N, of the usual form,made adjustable in their connection with the shovel-beams to vary their height in the usual manner. The forward ends of the shovel-beams are provided with a coupling-yoke produced in two like parts, P, fitted at their rear ends to embrace the upper and lower edges of the shovelbeams, and a screw-bolt passed vertically through the parts, and in this instance through the foot of a suspension-link, l, is provided with a screw-nut, and serves to fix the parts securely to each other. The forward ends of the like parts of the coupling-yoke are bored to receive the journal ends of the tubular coupling-bar K to oscillate thereon. The openings in the forward ends of the yoke-arms,on the outside thereof, are produced in conic form, and receive a tubular conic washer, m, and a screw-bolt passed through the tubular coupling-bar and conic washers serve to fix the parts in a manner to permit a lateral movement of the rear ends of the shovelbeams, and prevent axial or rolling movement thereof, and the employment of the conic washers furnish the means to compensate for wear and maintain the close working of joint connection. The connection of shovel-beam with the draft-bar of the axlesupporting bracket is rigid in a vertical direction, and in the vertical movements of the shovel-beanis the axle-arm oscillates in the wheelhub, and the connection of the tongueframe with the bracket-support of the axlearm forward ofthe supporting-wheel serves in a measure as a counterbalance to lessen the force required to manipulate the shovelbeams.

At are represented supporting-loops having their forward ends fixed to the tongue-beam with the forward ear of the cross-head, and their rear end with the rear ear thereof. The rear connection of the supporting-loops, by means of their lateral end arms, 1), are made laterably adjustable, to place their supportingarms in position to correspond more nearly with the position of the shovel-beams in their lateral adj ustments to receive the suspensionhooks Z, to support the shovel-beams elevated.

At R is represented a draft-arm depending from the tubular draft-bars, and is provided .with a series of holes, 8, in a vertical line.

At T are represented draft-links having their rear ends fitted in hook form to enter the holes sin the draft-arms, in which they are made vertically adjustable. These draft-links T are supported near the center of their length by a chain, t, or other flexible link-support connected to the projecting end of the arched bar, and the forward ends of the draft-links are fitted to receive a single-tree.

From the foregoing it will be seen that by means of the two-part crank-formed arching bar and its connection with the bracket-supports of the wheel-supporting axle-arms, and by its adjustable connection with the crosshead of the tongue-frame, the carrying-wheels may be adjusted toward or from each other to fit the machine, for the better cultivation of plants varying in the distance between the rows, and by means of the adjustable connection of the shovel-beams with the draft-bars the gangs of shovels may be adjusted toward or from each other, to cultivate closer to or farther from the plants. In this construction of a cultivator the respective gangs of shovels are capable of a limited independent back and forth movement, which renders the use of an evener unnecessary. It will also be observed that the vertical adjustment of the draft-link in its connection with the depending draftarm in connection with the vertical rigid connection of the shovel-beams with the draft-bar will operate to hold the shovels to the ground with greater or less force, as the draft-link is adjusted down or up on the draft-arm, and will vary the running-depth of the shovels. It will still further be observed that the vertical adjustments of the shovel-beams in their connection with the draft-bar will also vary the running-depth of the shovels.

I claim as my invention 1. The combination,with the tongue-beams, of a cross-head consisting of parallel bars united by cross-bars, substantially as herein described, fixed to the rear ends of the beams, as and for the purpose set forth.

2. The combination,with a cross-head, substantiall y as herein described, fixed to the rear ends of the tongue-beams, of a two-part arched bar having independent journal-supports in the cross-head and capable of an independent oscillatory movement therein, substantially as and for the purpose set forth.

3. The combination,with the cross-head and with the two-part arched bar supported to oscillate in the cross-head, of collars fixed to the arched bar to limit their oscillatory movement, substantially as and for the purpose set forth.

4. The combination, with the crosshead consisting of the parallel bars and cross-bars, and with the two-part arched bar capable of a lateral adjustment in their cross-head support, of collars made adjustable on the arched bar to vary the distance between the carryingwheels, substantially as and for the purpose set forth.

5. The combination,with the cross-head and with the two-part arched bar supported to oscillate in its hearings in the cross-head and capable of alateral adjustment therein, of collars adj ustably fixed to the arched bars within the cross-head to permit a lateral adjustment of the arched bar and limit the oscillatory movement thereof, substantially as and for the purpose set forth.

6. An axle bracket-support, substantially as described,consisting, essentially,of a draftbar and a sleeve to receive the arching bar, said sleeve and draftbar having suitable bracket-arm connections, substantially as and for the purpose set forth.

7. The combination, with the supportingwheels and the arched bar, of an axle-arm bracket-support consisting of a sleeve, rearwardly-projecting arms, and a tubular draftbar, all substantially as and for the purpose set forth.

8. The combination,with the shovel-beams, of ashovel-supporting sleeve pivotally con nected with the foot of the beam, frictional clamping-jaws to engage the beam and overlap the sleeve, and a clamping screw-bolt to fix the clamping-jaws and regulate their holding force, substantially in the manner and for the purpose set forth.

9. The combination, with the axle-arm bracket support consisting of the sleeve, the rearward-projecting arms, and tubular shaft, of a draft-link having an adjustable connection with the said bracket andafiexible support, substantially as set forth.

HENRY W. WILLIAMS, J. B. MARSH. 

